Wednesday, June 8, 2011
Your Questions About Nasa Pictures
Sandra asks…Why do NASA pictures have blank patches in them?Like this one http://en.wikipedia.org/wiki/File:PIA02202_Neptune%27s_full_rings.jpgpoptropicahelp answers:Well that one is a pair of images of Neptune's rings. The blank patch is where no image was taken, because Npetune had to be left out of the pictures in order to correctly expose the rings. If the pictures had included Neptune the long exposure time would have meant Neptune itself was so bright and overexposed nothing would show u
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